31788180

素因数分解:

$2^2\times 3^3\times 5^1\times {\mathrm{37}}^2\times {\mathrm{43}}^1$

素因数の和:135

約数の個数: 144

約数和(自身を含む): 104005440

約数和(自身を除く): 72217260

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 27, 30, 36, 37, 43, 45, 54, 60, 74, 86, 90, 108, 111, 129, 135, 148, 172, 180, 185, 215, 222, 258, 270, 333, 370, 387, 430, 444, 516, 540, 555, 645, 666, 740, 774, 860, 999, 1110, 1161, 1290, 1332, 1369, 1548, 1591, 1665, 1935, 1998, 2220, 2322, 2580, 2738, 3182, 3330, 3870, 3996, 4107, 4644, 4773, 4995, 5476, 5805, 6364, 6660, 6845, 7740, 7955, 8214, 9546, 9990, 11610, 12321, 13690, 14319, 15910, 16428, 19092, 19980, 20535, 23220, 23865, 24642, 27380, 28638, 31820, 36963, 41070, 42957, 47730, 49284, 57276, 58867, 61605, 71595, 73926, 82140, 85914, 95460, 117734, 123210, 143190, 147852, 171828, 176601, 184815, 214785, 235468, 246420, 286380, 294335, 353202, 369630, 429570, 529803, 588670, 706404, 739260, 859140, 883005, 1059606, 1177340, 1589409, 1766010, 2119212, 2649015, 3178818, 3532020, 5298030, 6357636, 7947045, 10596060, 15894090, 31788180]

約数ペア:

[(1, 31788180), (2, 15894090), (3, 10596060), (4, 7947045), (5, 6357636), (6, 5298030), (9, 3532020), (10, 3178818), (12, 2649015), (15, 2119212), (18, 1766010), (20, 1589409), (27, 1177340), (30, 1059606), (36, 883005), (37, 859140), (43, 739260), (45, 706404), (54, 588670), (60, 529803), (74, 429570), (86, 369630), (90, 353202), (108, 294335), (111, 286380), (129, 246420), (135, 235468), (148, 214785), (172, 184815), (180, 176601), (185, 171828), (215, 147852), (222, 143190), (258, 123210), (270, 117734), (333, 95460), (370, 85914), (387, 82140), (430, 73926), (444, 71595), (516, 61605), (540, 58867), (555, 57276), (645, 49284), (666, 47730), (740, 42957), (774, 41070), (860, 36963), (999, 31820), (1110, 28638), (1161, 27380), (1290, 24642), (1332, 23865), (1369, 23220), (1548, 20535), (1591, 19980), (1665, 19092), (1935, 16428), (1998, 15910), (2220, 14319), (2322, 13690), (2580, 12321), (2738, 11610), (3182, 9990), (3330, 9546), (3870, 8214), (3996, 7955), (4107, 7740), (4644, 6845), (4773, 6660), (4995, 6364), (5476, 5805)]